APA (7th ed.) Citation

Dougherty, J. E., & Pfaltzgraff, R. L. (1997). Contending theories of international relations: A comprehensive survey (4th ed.). Longman.

Chicago Style (17th ed.) Citation

Dougherty, James E., and Robert L. Pfaltzgraff. Contending Theories of International Relations: A Comprehensive Survey. 4th ed. New York: Longman, 1997.

MLA (9th ed.) Citation

Dougherty, James E., and Robert L. Pfaltzgraff. Contending Theories of International Relations: A Comprehensive Survey. 4th ed. Longman, 1997.